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Prevent multiple postbacks in SharePoint 2013


The scenario:  Disabled the button after user’s click event. Prevent user from clicking it several times.

The problem: If the button is disabled, the server side event handler is not fired.

The solution: Set the property UseSubmitBehavior to false.

Explanations

Here is the working code of how to have disabled button after it is clicked:


<asp:Button ID="Button1" runat="server" Text="Do Postback" UseSubmitBehavior="false"  OnClick="Button1_Click" OnClientClick="Validate(this)"  />


       function Validate(thisObj)
       {
           thisObj.disabled = true;
           return true;
       }


If you don't set the property UseSubmitBehavior your code in the handler Button1_Click won’t fire. I spend several hours in debugging it. Hope this save time to somebody.




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